Improved star-shaped cinder valve

Abstract

The utility model provides a modified star-shaped cinder valve. The modified star-shaped cinder valve comprises a shell, an impeller, a driving motor, a baffle assembly and a plugging assembly. The impeller is arranged in an inner cavity of the shell and comprises a rotating shaft and a plurality of blades, the driving motor is in transmission connection with the impeller, the baffle assembly comprises two baffles fixedly connected in a feeding port of the shell, an inlet is formed between the two baffles, and the plugging assembly comprises a sealing plate connected between the outer ends of every two adjacent blades. The two partition plates are connected to the outer side of each sealing plate, a material receiving groove is formed between the two partition plates, and the material receiving grooves sequentially pass through the position below the inlet along with rotation of the impeller; the baffle assembly can reduce entering of materials, the blocking assembly can reduce the conveying amount of the materials, and therefore the requirement for the small conveying amount of the materials is met, and the motor frequency does not need to be reduced.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a modified rotary ash discharge valve. Background Technology

[0002] Rotary rotary valves are key equipment widely used in dust and particulate matter conveying systems, commonly found in the metallurgical, chemical, and environmental protection industries. Their advantages include continuous unloading, excellent sealing, and ensuring process stability and environmental compliance. Users can select appropriate rotary valves with suitable flow rates, rotation speeds, and other parameters based on the material conveying requirements.

[0003] In emergency scenarios, if a suitable ash discharge valve is temporarily unavailable, a valve with a higher flow rate and speed can be selected, reducing its motor frequency to meet material conveying requirements. However, prolonged low-frequency operation of the motor can cause it to overheat or even be damaged. Furthermore, the output frequency of the motor is somewhat inaccurate during low-frequency operation, resulting in unstable motor speed and affecting the accuracy of the unloading volume. This can severely impact the production quality of materials requiring high unloading volume.

[0004] Therefore, there is an urgent need for a technical solution to modify the ash discharge valve in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a modified rotary valve for unloading ash, thereby solving the aforementioned technical problems in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a modified rotary valve for unloading ash, comprising:

[0008] The shell has an internal cavity, a feed inlet at the top, and a discharge outlet at the bottom;

[0009] An impeller, which is disposed in the inner cavity, includes a horizontally arranged rotating shaft and multiple blades connected to the rotating shaft;

[0010] A drive motor, which is connected to the impeller drive;

[0011] A baffle assembly includes two baffles fixedly connected inside the feed inlet, with an inlet formed between the two baffles;

[0012] The sealing assembly includes multiple sealing plates and multiple partitions. A sealing plate is fixedly connected between the outer ends of every two adjacent blades. Two partitions are fixedly connected to the outer side of each sealing plate, and a receiving groove is formed between the two partitions. The sealing assembly is configured such that the receiving grooves on the multiple sealing plates pass sequentially below the inlet as the impeller rotates.

[0013] In one embodiment of this utility model, the plurality of partitions are respectively perpendicular to the extension direction of the rotating shaft.

[0014] In one embodiment of the present invention, the top edge of the partition is configured as an arc-shaped edge that corresponds to the arc-shaped edge of the inner wall of the inner cavity, and a gap is left between the partition and the inner wall of the inner cavity.

[0015] In one embodiment of the present invention, the baffle is configured as an arc-shaped structure adapted to the top of the partition.

[0016] In one embodiment of this utility model, the opposite sides of the sealing plate are respectively welded to the corresponding blades, the partition is welded to the sealing plate, and the baffle is welded inside the feed inlet.

[0017] In one embodiment of the present invention, the feed inlet is connected to an upwardly extending feed hopper, and the baffle is fixedly connected to the feed hopper by a first fastener.

[0018] In one embodiment of the present invention, the sealing plate is provided with inwardly bent edges on opposite sides, the edges are fitted with the corresponding blades, and are fixedly connected to the blades by a second fastener.

[0019] In one embodiment of the present invention, the second fastener includes a second bolt and a second nut, wherein the second bolt passes through the blade and the folded edges of the sealing plates on opposite sides of the blade and is threadedly connected to the second nut.

[0020] In one embodiment of this utility model, the feed inlet is connected to an upwardly extending feed hopper, and a screen is fixedly connected inside the feed hopper.

[0021] In one embodiment of this utility model, an observation window is provided on the housing, and a transparent material plate is disposed inside the observation window.

[0022] One beneficial effect of this utility model is that:

[0023] By installing a baffle assembly at the inlet of the ash discharge valve, material intake is reduced. A blocking assembly is installed on the impeller of the ash discharge valve; the blocking assembly's sealing plate blocks the impeller grooves between the blades, and the material receiving trough between the two baffles of the blocking assembly transports material. The receiving trough has a smaller capacity, thus reducing the material conveying volume. The baffle and blocking assemblies are simple in structure, easy to install, and low in cost, effectively reducing the conveying volume of the ash discharge valve and meeting material conveying requirements. It does not require reducing the drive motor frequency; the drive motor speed remains stable, output accuracy is high, and the problem of overheating or even damage caused by low-frequency drive motor operation is avoided.

[0024] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the modified rotary ash discharge valve provided by this utility model;

[0027] Figure 2 yes Figure 1 Exploded view of the star-shaped ash discharge valve in the image;

[0028] Figure 3 yes Figure 1 A schematic diagram of the housing of the star-shaped ash discharge valve in the diagram;

[0029] Figure 4 yes Figure 1 A schematic diagram of the impeller and sealing assembly of the star-shaped ash discharge valve;

[0030] Figure 5 This is a transverse sectional view of one embodiment of the modified rotary ash discharge valve provided by this utility model;

[0031] Figure 6 This is a longitudinal sectional view of one embodiment of the modified rotary ash discharge valve provided by this utility model;

[0032] Figure 7 This is a schematic diagram of the screen structure of an embodiment of the modified rotary ash discharge valve provided by this utility model.

[0033] The reference numerals and their corresponding component names in the figure are as follows:

[0034] 1. Shell; 11. Inner cavity; 12. Feed inlet; 13. Feed hopper; 14. Discharge outlet; 15. Discharge hopper; 16. Observation window;

[0035] 2. Impeller; 21. Shaft; 22. Blades; 23. Impeller groove;

[0036] 3. Drive motor;

[0037] 4. Baffle; 40. Inlet; 41. First fastener;

[0038] 5. Sealing plate; 51. Folding edge; 52. Second fastener;

[0039] 6. Partition; 60. Material receiving trough; 61. Curved edge;

[0040] 7. End caps;

[0041] 8. Screen. Detailed Implementation

[0042] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0043] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0044] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0045] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0046] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0047] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0048] In this document, unless otherwise stated, "multiple" means two or more.

[0049] In this document, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.

[0050] Examples of various specific processes and materials are provided in this document, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0051] Wherever possible, the various aspects and features described and illustrated in this specification may be applied individually, and these individual aspects may serve as the subject matter of a divisional application.

[0052] Figures 1 to 7This invention illustrates a modified rotary valve for unloading ash, comprising a housing 1, an impeller 2, a drive motor 3, a baffle assembly, and a sealing assembly.

[0053] The housing 1 has an inner cavity 11, a feed inlet 12 at the top, and a discharge outlet 14 at the bottom.

[0054] The impeller 2 is disposed in the inner cavity 11 of the housing 1. The impeller 2 includes a horizontally arranged rotating shaft 21 and a plurality of blades 22 connected to the rotating shaft 21. Impeller grooves 23 are formed between adjacent blades 22.

[0055] The drive motor 3 is connected to the impeller 2 for driving the impeller 2 to rotate around the shaft 21 in the inner cavity of the housing 1.

[0056] The baffle assembly includes two baffles 4 fixedly connected to the feed inlet 12, forming an inlet 40 between the two baffles 4.

[0057] The sealing assembly includes multiple sealing plates 5 and multiple baffles 6, with one sealing plate 5 fixedly connected between the outer ends of every two adjacent blades 22. The end of the blade 22 furthest from the rotating shaft 21 is the outer end. Two baffles 6 are fixedly connected to the outer side of each sealing plate 5, and a receiving groove 60 is formed between the two baffles 6. The sealing assembly is configured such that the receiving grooves 60 on the multiple sealing plates 5 pass sequentially below the inlet 40 as the impeller 2 rotates.

[0058] Material enters from inlet 40 and falls into receiving trough 60 below inlet 40; as impeller 2 rotates, receiving trough 60 transports material to the bottom of inner cavity 11, so that material is output through outlet 14.

[0059] Baffle 4 narrows the feed inlet 12, allowing material to enter the inner cavity 11 only through inlet 40. This reduction in material intake decreases the conveying capacity of the ash discharge valve. Sealing plate 5 blocks the impeller groove 23 between the blades 22, preventing material from entering the groove. Material is instead transported through the receiving trough 60 between the two baffles 6. The smaller capacity of the receiving trough 60 further reduces the material conveying capacity. The baffle and sealing components are simple in structure, easy to install, and low in cost. They effectively reduce the conveying capacity of the ash discharge valve, meeting material conveying requirements without requiring a reduction in the drive motor 3 frequency. The drive motor speed remains stable, with high output accuracy, and the problem of overheating or even damage caused by low-frequency operation of the drive motor 3 is avoided.

[0060] Specifically, a side opening may be provided on the side of the housing 1, and an openable end cover 7 may be installed at the side opening. The inner wall of the inner cavity 11 is configured as an arc surface adapted to the impeller 2, and a gap is left between the blade 22 and the inner wall of the inner cavity 11. The rotating shaft 21 may be connected to the housing 1 via a bearing. The drive motor 3 is located outside the housing 1, and the output shaft of the drive motor 3 may be coaxially connected to the rotating shaft 21 via a coupling.

[0061] In some implementations, such as Figure 2 and Figure 4 As shown, multiple baffles 6 are perpendicular to the extension direction of the rotating shaft 21. The opposite ends of the baffles 6 extend to the corresponding blades 22. When the impeller 2 rotates, each receiving trough 60 can continuously receive materials.

[0062] Specifically, the extension direction of the rotating shaft 21 is defined as the length direction. The two partitions 6 on the sealing plate 5 are distributed along the length direction, and the two baffles 4 are also distributed along the length direction. The two partitions 6 are located below the corresponding baffles 4. In the length direction, the size of the inlet 40 is smaller than the size of the receiving trough 60 so that the material can fall from the inlet 40 into the receiving trough 60.

[0063] In some embodiments, the top edge of the partition 6 is configured as an arc-shaped edge 61 that conforms to the inner wall of the inner cavity 11, and a gap is left between the partition 6 and the inner wall of the inner cavity 11 to avoid interference between the partition 6 and the inner wall of the inner cavity 11.

[0064] In some implementations, such as Figure 5 As shown, the two baffles 4 are respectively set as arc-shaped structures that adapt to the top of the partition 6, and a gap is also left between the baffles 4 and the partition 6 to avoid interference.

[0065] Furthermore, such as Figure 6 As shown, two baffles 4 can be connected obliquely in the feed inlet 12. In the length direction, the baffles 4 are inclined downward from the side away from the inlet 40 to the side closer to the inlet 40, and the material falling on the baffles 4 can enter the inlet 40 along the inclined baffles 4.

[0066] In some specific embodiments, the opposite sides of the sealing plate 5 are welded to the corresponding blades 22; the partition plate 6 is welded to the sealing plate 5; and the baffle plate 4 is welded inside the feed inlet 12. The welding method is simple and reliable, and the modification cost is low.

[0067] In some other specific embodiments, the sealing plate 5 is detachably fixed to the blade 22, and the baffle 4 is detachably fixed to the feed inlet 12. After removing the baffle 4, the sealing plate 5 and the partition 6, the ash discharge valve can be restored to its original state.

[0068] In one implementation, such as Figure 6 As shown, the feed inlet 12 is connected to an upwardly extending feed hopper 13, and the baffle 4 is fixedly connected to the feed hopper 13 by a first fastener 41.

[0069] Specifically, the edge of the baffle 4 can be provided with a lug for mounting the first fastener 41, which fixes the lug to the side wall of the feed hopper 13. The first fastener 41 can be a bolt or nut. The lug and the feed hopper 13 need to have through holes for mounting the first fastener 41.

[0070] In one implementation, such as Figure 4 and Figure 5 As shown, the sealing plate 5 has inwardly bent edges 51 on opposite sides. The edges 51 fit against the corresponding blades 22 and are fixedly connected to the blades 22 by the second fasteners 52. The blades 22 and the edges 51 need to have through holes for installing the second fasteners 52.

[0071] During assembly, the folded edge 51 can limit the installation of the sealing plate 5, making it easier to install the second fastener 52; the folded edge 51 can support the sealing plate 5, increasing its stability; the folded edge 51 fits snugly against the sealing plate 5, reducing gaps and thus reducing material leakage.

[0072] Specifically, the second fastener 52 includes a second bolt and a second nut. The second bolt passes through the blade 22 and the folded edges 51 of the sealing plates 5 on opposite sides of the blade 22, and is threadedly connected to the second nut. The second fastener 52 can simultaneously fix two adjacent sealing plates 5, thereby reducing the number of parts, saving costs, and reducing the number of openings on the blade 22.

[0073] In one implementation, such as Figure 7 As shown, the feed inlet 12 is connected to an upwardly extending feed hopper 13, and a screen 8 is fixedly connected inside the feed hopper 13. Material enters the feed hopper 13 after being filtered through the screen 8, preventing large clumps from entering and causing blockages. The screen 8 is located above the baffle assembly and can be detachably fixed to the top opening of the feed hopper 13.

[0074] In one implementation, such as Figure 7 As shown, an observation window 16 is provided on the housing 1, and a transparent material plate is installed inside the observation window 16. The working status inside the cavity 11 of the housing 1 can be observed through the observation window 16. If the material gets stuck in the cavity 11, it can be checked through the observation window 16. The observation window 16 can be set on the side wall of the housing 1, or it can be set on the feed hopper 13 or the discharge hopper 15.

[0075] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A modified rotary valve for ash discharge, characterized in that, include: The shell has an internal cavity, a feed inlet at the top, and a discharge outlet at the bottom; An impeller, which is disposed in the inner cavity, includes a horizontally arranged rotating shaft and multiple blades connected to the rotating shaft; A drive motor, which is connected to the impeller drive; A baffle assembly includes two baffles fixedly connected inside the feed inlet, with an inlet formed between the two baffles; The sealing assembly includes multiple sealing plates and multiple partitions. A sealing plate is fixedly connected between the outer ends of every two adjacent blades. Two partitions are fixedly connected to the outer side of each sealing plate, and a receiving groove is formed between the two partitions. The sealing assembly is configured such that the receiving grooves on the multiple sealing plates pass sequentially below the inlet as the impeller rotates.

2. The modified rotary valve for ash discharge according to claim 1, characterized in that, The plurality of partitions are respectively perpendicular to the extension direction of the rotating shaft.

3. The modified rotary ash discharge valve according to claim 1, characterized in that, The top edge of the partition is configured as an arc-shaped edge that conforms to the inner wall of the cavity, and a gap is left between it and the inner wall of the cavity.

4. The modified rotary ash discharge valve according to claim 3, characterized in that, The baffle is configured as an arc-shaped structure that adapts to the top of the partition.

5. The modified rotary ash discharge valve according to claim 1, characterized in that, The sealing plate is welded to the corresponding blades on its opposite sides, the partition is welded to the sealing plate, and the baffle is welded inside the feed inlet.

6. The modified rotary valve for ash discharge according to claim 1, characterized in that, The feed inlet is connected to an upwardly extending feed hopper, and the baffle is fixedly connected to the feed hopper by a first fastener.

7. The modified rotary ash discharge valve according to claim 1, characterized in that, The sealing plate has inwardly bent edges on its opposite sides. The bent edges fit into the corresponding blades and are fixedly connected to the blades by a second fastener.

8. The modified rotary ash discharge valve according to claim 7, characterized in that, The second fastener includes a second bolt and a second nut, the second bolt being threadedly connected to the second nut after passing through the blade and the folded edges of the sealing plates on opposite sides of the blade.

9. The modified rotary valve for ash discharge according to claim 1, characterized in that, The feed inlet is connected to an upwardly extending feed hopper, and a screen is fixedly connected inside the feed hopper.

10. The modified rotary valve for ash discharge according to any one of claims 1 to 9, characterized in that, An observation window is provided on the housing, and a transparent material plate is placed inside the observation window.

Images